class HumanResource {
  String name;
  String sysName;

  HumanResource(this.name, this.sysName);
}

class HumanDirector extends HumanResource {
  HumanDirector(String name, String sysName) : super(name, sysName);

}

class HumanRD extends HumanResource {
  HumanRD(String name, String sysName) : super(name, sysName);

}

class HumanQA extends HumanResource {
  HumanQA(String name, String sysName) : super(name, sysName);

}

class HumanPM extends HumanResource {
  HumanPM(String name, String sysName) : super(name, sysName);

}
